Compress Video for YouTube

Reduce YouTube video file size with quality-based encoding. Preserve 4K and high bitrate — never crush to a random size.

▶Optimize for YouTube Video

1. Target

Platform:

Recommended: 3840 × 2160 16:9 · H.264 · MP4 · 60 FPS · AAC 192 kbps

2. Select file

Select a video file

[ Browse... ] or drop a file here

Supported: MP4, MOV, WebM, M4V, AVI, MKV, 3GP.

YouTube accepts files up to 128 GB or 12 hours, so there is no reason to crush your video to a tiny size. Quality-based encoding (CRF) instead removes unnecessary megabytes while preserving the visual quality of your master. We keep 4K as 4K and 1440p as 1440p — we never force a resolution drop.

?About this preset

How it works

Upload your file
We analyze your file
We optimize it for YouTube
Download your optimized file

Technical details

Property	Value
Recommended resolution	3840 × 2160
Aspect ratio	16:9
Format / codec	MP4 · H.264 + AAC
Frame rate	60 FPS
Video bitrate target	~16 Mbps (quality-based CRF)

Compression strategy

YouTube's upload limit is 128 GB or 12 hours — file-size targets are largely irrelevant here.
We preserve your resolution: 4K stays 4K, 1440p stays 1440p, 1080p stays 1080p.
Quality-based VBR encoding (CRF ~19) trims wasteful bitrate while protecting fine detail.
High frame rate sources (up to 60 FPS) are retained natively for YouTube.
AAC audio at 192 kbps keeps high-quality master audio in the file.

FAQ

Should I compress my YouTube video to 10 MB?

No. YouTube allows uploads up to 128 GB. The right goal is quality-based encoding that trims waste, not a tiny file that loses detail.

Does YouTube compress 4K videos?

YouTube transcodes for delivery, but it preserves 4K quality. Keep your 4K master intact — we never downscale 4K.

Will making my file smaller reduce YouTube quality?

Only if you encode below a healthy quality threshold. Our CRF-based encoding removes waste without visible loss.

Where does the encoding happen?

In your browser via FFmpeg WebAssembly. Large 4K files will use significant CPU — keep the tab open while it runs.